Useful or not, from you.
angular-cli Call retries were exceeded while build

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๐Ÿž Bug report

Command (mark with an x)

<!-- Can you pin-point the command or commands that are effected by this bug? --> <!-- โœ๏ธedit: -->

- [ ] new
- [x] build
- [ ] serve
- [ ] test
- [ ] e2e
- [ ] generate
- [ ] add
- [ ] update
- [ ] lint
- [ ] xi18n
- [ ] run
- [ ] config
- [ ] help
- [ ] version
- [ ] doc

Is this a regression?

<!-- Did this behavior use to work in the previous version? --> <!-- โœ๏ธ--> No

Description

<!-- โœ๏ธ--> A clear and concise description of the problem... while running npm build --prod, first build done successfully, but at differential loading got the error

[error] Error: Call retries were exceeded
    at ChildProcessWorker.initialize (D:\AccFlex_Cloud_Front\accflex-erb\node_modules\jest-worker\build\workers\ChildProcessWorker.js:193:21)
    at ChildProcessWorker.onExit (D:\AccFlex_Cloud_Front\accflex-erb\node_modules\jest-worker\build\workers\ChildProcessWorker.js:263:12)
    at ChildProcess.emit (events.js:182:13)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:240:12)

๐Ÿ”ฌ Minimal Reproduction

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๐Ÿ”ฅ Exception or Error

<pre><code> [error] Error: Call retries were exceeded at ChildProcessWorker.initialize (D:\AccFlex_Cloud_Front\accflex-erb\node_modules\jest-worker\build\workers\ChildProcessWorker.js:193:21) at ChildProcessWorker.onExit (D:\AccFlex_Cloud_Front\accflex-erb\node_modules\jest-worker\build\workers\ChildProcessWorker.js:263:12) at ChildProcess.emit (events.js:182:13) at Process.ChildProcess._handle.onexit (internal/child_process.js:240:12) </code></pre>

๐ŸŒ Your Environment

<pre><code> <!-- run ng version and paste output below --> <!-- โœ๏ธ--> _ _ ____ _ ___ / \ _ __ __ _ _ | | __ _ _ __ / | | | | / โ–ณ \ | ' \ / _| | | | |/ _ | '| | | | | | | / ___ | | | | (| | || | | (| | | | || |___ | | // __| ||_, |_,||_,|| _||_| |___/

Angular CLI: 8.3.8 Node: 10.14.2 OS: win32 x64 Angular: 8.2.9 ... animations, common, compiler, compiler-cli, core, forms ... language-service, platform-browser, platform-browser-dynamic ... router

Package Version

@angular-devkit/architect 0.803.8 @angular-devkit/build-angular 0.803.8 @angular-devkit/build-optimizer 0.803.8 @angular-devkit/build-webpack 0.803.8 @angular-devkit/core 8.3.8 @angular-devkit/schematics 8.3.8 @angular/cli 8.3.8 @ngtools/webpack 8.3.8 @schematics/angular 8.3.8 @schematics/update 0.803.8 rxjs 6.4.0 typescript 3.5.3 webpack 4.39.2 </code></pre>

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That's a useful answer
Without any help

This seems to be related to https://github.com/angular/angular-cli/issues/15493